Home / 103,023.70-154,681.35-80,862.10

Finding the Fourth Proportional to 103,023.70, 154,681.35 and 80,862.10

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Solution

The fourth proportional to 103,023.70, 154,681.35 and 80,862.10 is: 121,407.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,023.70 : 154,681.35 = 80,862.10 : x
  2. Step 2: Convert to fraction form
    103,023.70/154,681.35 = 80,862.10/x
  3. Step 3: Cross multiply
    103,023.70x = 154,681.35 × 80,862.10
  4. Step 4: Simplify right side
    103,023.70x = 12,507,858,791.84
  5. Step 5: Solve for x
    x = 12,507,858,791.84/103,023.70
  6. Step 6: Final answer
    x = 121,407.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.